first, the demise of patriarchy in traditional rural area.
second, the implication of one-child policy promulgated decades ago.
third, Deng's economy revolution and collapse of autarky and commune economy
forth, distinction in sexual taboo and library courtship in urban and rural area
fifth, capitalization of districtual economy.
all the points deserve further elaboration, which is perfectly and artistically done by Mr. Zhao Benshan and company.